78397490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{110419}}^1$

素因数の和:110497

約数の個数: 16

約数和(自身を含む): 143104320

約数和(自身を除く): 64706830

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 110419, 220838, 552095, 1104190, 7839749, 15679498, 39198745, 78397490]

約数ペア:

[(1, 78397490), (2, 39198745), (5, 15679498), (10, 7839749), (71, 1104190), (142, 552095), (355, 220838), (710, 110419)]